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This Window Transforms into a Balcony, Giving a City Apartment an Outdoor Space in 55 Seconds

This Window Transforms into a Balcony, Giving a City Apartment an Outdoor Space in 55 Seconds

This is the Bloomframe, a modern, multi-purpose window that transforms into a balcony within just 55 seconds. From Amsterdam to Paris and New York, you can give an urban apartment in a beautiful high-rise building a stunning outdoor space and potentially add value to your property and square-footage – well sort of!

With just a push of a button, you can open the glass window frame and it will “unfold” into a balcony, then grab a chair, a cocktail, and chill! The innovative and multi-award-winning design, which is no longer a prototype, will be introduced to the Big Apple, among other urban landscapes worldwide.



Created by Amsterdam-based architecture firm HofmanDujardin, the Bloomframe window is manufactured by PortalP France and installed by Schipper Kozijnen Netherlands. Bot Bouw, Bloomframe’s contractor, is responsible for the construction of the total project. Back in 2017, the first model was successfully installed in an apartment building in Amsterdam in The Netherlands.

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